Delayed reactions or no response when keys are pressed and lack of scrolling maneuverability are problems commonly associated with a defective mouse device. In some cases, the mouse cursor may even disappear and then reappear. Any one of these navigational issues, if left unaddressed, will lead to a reduction in productivity. Troubleshooting is simplified by using the Device Manager utility, because it is directed by the symptoms manifested.
Click "Start" and then "Run." Alternatively, if your mouse is a universal serial bus (USB) plug-and-play device, skip this step and go directly to Step 7. Type "sysdm.cpl" (without the quotation marks) and then click "OK." Select the "Hardware" tab and click "Device Manager." Click the expansion node for "Mice and other pointing devices." Right-click on the active mouse and then click "Properties." Go to the "General" tab and click "Troubleshoot." Follow the recommended suggestions to solve the issue. If the problem is not solved and your mouse is a USB plug-and-play device, proceed to Next step Step 7. Install the Microsoft Fix-it USB Troubleshooting Tool (see Link Below ). Then follow the prompts to repair the mouse. http://windows.microsoft.com/en-US/windows-vista/Tips-for-solving-problems-with-USB-devices